What Is a Stem Cell Niche?.- New Strategy for Comprehensive Analysis of Gene Functions in Embryonic Stem cells.- Paternal Dual Barrier by Ifg2-H19 and Dlk1-Gtl2 to Parthenogenesis in Mice.- Cell-Cell Fusion as a Means to Establish Pluripotency.- Toward Reprogramming Cells to Pluripotency.- Molecular Switches and Developmental Potential of Adult Stem Cells.- Adult Small Intestinal Stem Cells: Identification, Location, Characteristics, and Clinical Applications.- Tracking Stem Cells In Vivo.- Establishment of Nuclear Transfer Embryonic Stem Cell Lines from Adult Somatic Cells by Nuclear Transfer and Its Application.- Derivation of Germ Cells from Embryonic Stem Cells.- Germline Recruitment in Mice: A Genetic Program for Epigenetic Reprogramming.- Transplantation of Germ Line Stem Cells for the Study and Manipulation of Spermatogenesis.- Progenitor Cell-Based Myelination as a Model for Cell-Based Therapy of the Central Nervous System.- Adult Neural Stem Cells and Central Nervous System Repair.- Stem Cell Therapy for Parkinson's Disease.